Abstract: The present invention provides improved aftermarket vehicle lowering steering knuckles that are superior to existing aftermarket steering knuckles because they are capable of lowering a vehicle while maintaining or improving vehicle handling, increasing caster, and improving alignment capabilities. Embodiments of the vehicle lowering steering knuckles of the present invention improve handling characteristics by adding caster angle into the steering knuckle, allowing the original caster specifications to be increased without changing the forward or aft locations of the vehicle wheels. This is achieved by adjusting the mounting location of the upper ball joint laterally so that the mounting points are adjusted without affecting the front wheel placement. Embodiments of the vehicle lowering steering knuckles of the present invention also increase vehicle lowering capacity by increasing the downward angle of the upper ball joint mount.